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(No Model.) 8 Sheets-Sheet 1.

F. W. LEINBAOH, O. A. WOLLE & E. H. BRUNNER.

.PAPER BAG MACHINE.

No. 327,280. Patented Sept. 29, 1885 IN VENTOR g mA/ vta v 0% 53;

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(No Model.) 8 Sheets--Sheet 2.

I. W. LEINBAGH, G. A. WOLLE &'E. H. BRUNNER.

PAPER BAG MACHINE. I

No.- 3Z7,280. Patented-Sept. 29, 1885.

WITNESSES" I g M 14W 5 (No Model.) 8 Sheets-Sheet3.

P. W. LEINBAGH, (J. A. WOLLE 8; E. H. BRUNNER. PAPER BAG MACHINE.

No. 327,280. Patented Sept. 29, 1885.

ITNESSES: fJVI/EJVTUR:

(No Model.) 8 Sheets-Sheet 4. F. W. LEINBAGH', C. A. WOLLE -& E. H.BRUNN'ER.

PAPER BAG MACHINE.

No. 327,280. Patented Sept. 29, 1885.

JJVVE'JVTOR S. WOZMQJQ 00 M W a E (No Model.) s Sheets-Sheet 5.

P. W. LEINBACH, G. A. WOLLE & E. H. BRUNNER. PAPER BAG MACHINE.

Nae-27,280. Patented Sept. 29-, 1885.

W WITNESSES [minim/s.

JQJZ'W N. PETERSv Plwto-uiho n hm Wnhinmn. D.C.

(No Model.) 8 Sheets-Sheet 6.

P. W. LEINBAGH', O. A. WOLLE & E. H. BRUNNER.

PAPER BAGMAOHINE.

No. 327,280. Patented Sept. 29, 1885.

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(No Model.) 8 Sheets-Sheet 7.

P. W. LEINBAGH, O. A. WOLLE 8: E. H. BRUNNER.

PAPER BAG MACHINE.

Pe nzented Sept. 29,- 1885.

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- W. LEINBAOH, 0. WOLLE & E. H. BRUNNER.

' PAPB G MACHINE.

No. 327,280, Patented Sept 29, 1885.

WITNESSES JUL! JNVENTOR gww ywfmfl lINITED STATES PATENT OFFICE.

FELIX WV. LEINBACH, CLARENCE A. WVOLLE, AND EDWVARD H. BRUNNER, OFBETHLEHEM, PA., ASSIGNORS TO SAID LEINBAGH AND YVOLLE.

PAPER-BAG MACHINE.

SPECIFICATION forming part of Letters Patent No. 327,280, datedSeptember 29, 1885.

Application filed July 52, 1883.

To aZZ whom it may concern:

Be it known that we, FELIX WV. LEINBACH, CLARENCE A. \VoLLE, and EDWARDH. BRUN- NER, citizens of the United States, and residents of Bethlehem,Northampton county,

Pennsylvania, have invented certain Improvements in Paper-Bag Machines,of which the following is a specification.

Our invention relates to certain improvements in machines for makingsatchel-bottomed paper bags, part of our improvements being based uponthe Letters Patent No. 242,661, dated the 7th day of June, 1881.

In the accompanying drawings, Figs. 1,2,

and 3, Sheet 1, are views of different paper bags which can be producedby our machine. Figs. 4 to 27, Sheets 2, 3, 4., and 5, are diagramsillustrating the operations resorted to in forming the bag, only suchparts of the machine being shown as are necessary for such illustration.Figs. 28 and 29, Sheet 6, show a longitudinal section of the machine;Figs. 30 and 31, Sheet 7, a plan view of the same with some of the partsremoved; and Figs. 32, Sheet 2,

25 and 33 and 34, Sheet 8, detached views of various parts ofthemachine, illustrating features of our invention.

The machine which we have shown in the drawings, and which we willdescribe in this 0 specification, is adapted for the production of paperbags, such as shown in Figs. 1 and 2, these bags being made of tubeshaving an inward fold or tuck in each side. The machine can, however,with very slight change, be used 35 for the production of ordinarysatchel-bottomed bags made from plain tubes, as shown in Fig. 3. Thedevices for forming the tube with tucked-in sides from a sheet of paperdiffer somewhat in construction from those described in our formerpatent, but are similar in principle thereto, a being the plate overwhich the tube is formed, and a the upper plate, having flanges a",which serve to form the V-shaped tuck in the paper, as shown in Fig. 4,this tuck being guided bya bent plate, a and finally flattened and bentbeneath the plate a by the action of a plate, a, Fig. 6, said plate alsocausing the lapping of the edges of the under layer of paper to completethe tube, one of said edges having been previously pasted, so that whenpressure is ap- (No model.)

plied to the overlapping fold the edges will be secured together.

A thumb-notch is cut in the upper ply of the tube by means of a cutter,b, of the proper shape, carried in the present instance by a rotatingsegment, b. To prevent the clogging of this cutter, which is likely totake place, we use an ejector, which consists of a lever,

Z)", adapted to a slot in the segment I) and pivoted to said segment.Oue arm of the lever is connected to a plunger, If, adapted to fitsnugly, but slide freely, within the cutter b, this plunger beingpressed inward by the action ofaspring,b",on theleverb Fig. 32,so as tocause the opposite end of the lever 12 to project from the slot in thesegment, whereby as the latter revolves the projecting end of the leverby contact with the tube is pressed inward, thus causing an outwardmovement of the plate b and the ejection of the paper from the cutter.(See Fig. 6.) As the tube is drawn forward it leaves the former a andpasses over a plate,

d, the latter occupying a position between the lower folds of the tucksand the bottom ply of the tube, as shown in Fig. 7. This enables us toimpart pressure to the tucks before the tube reaches the feed-r0] ls,such pressure being in'iparted by means of a bar, (1, extendingtransversely across the tube and having recesses (P, as shown in Fig. 7so that while each tuck is subjected to pressure the upper fold and theinner or central fold of said tuck are not flattened, the object of thisbeing to permit the proper action,at a subsequent stage of the Op- 9 5eration, of a presser-plate for distending the mouth of the tube. Forthe same reason the feed-rolls e, Fig. 8, are grooved at points in linewith the upper and inner folds of the tucks. It is advisable, however,to press the 0 lower fold of the tuck so that the bottom lap of the tubewill lie flat on the table or bed, and not interfere with the action ofthe side tuck-folders hereinafter described; hence we arrange adjacentto the feed-rolls c a bar, f, which carries spring-presser blades f,which press upon and flatten the lower fold of the tuck as the tube isdrawn forward. (See Fig.

8.) From the feed-rolls the tube passes to the severing-rolls 9, Fig. 9,the upper of said rolls 10o carrying a severing-knife, g, and the lowerroll having a yielding block, 9 serving as a cutting-bed for the knife,so that as the tube passes between the rollers it is cut into blanks ofthe proper length for the bags to be produced. The severing-rolls alsoserve to feed the tube, and are grooved for the same reason as thefeed-rolls c.

From the severing-rolls the blank passes between the table i andpresser-plate h, the latter being elevated until sufficient of the blankhas passed beneath the same to form the bottom of the bag, when theplate is depressed, as shown in Fig. 10, so as to cause the gaping ofthe mouth of the blank, as described in our former patent.

Pivoted to the presser-plate h are arms m, the outer ends of which carryside tuck-folders substantially similar to those described in our formerpatent, and comprising a fixed plate, m, and pivoted plate m the latterin the present instance being simply a skeleton plate of wire, insteadof the solid plate formerly used. The construction of the sidetuck-folders will be understood on reference to the enlarged perspectiveviews, Figs. 10 and 10".

\Vhen the plate h descends onto the blank,

the arms in are in a retracted position, as

shown in Fig. 10; but when the tucks have been opened by the gaping ofthe mouth of the blank the arms in are caused to move inward, so as tocarry the folding-plates into the tucks, as shown in Fig. 11. The plateh after descending upon the blank moves forward with the same, and theplates on are thus brought under the influence of fingers m on the frameof the machine, and said plates are caused to turn backward, so that inconjunction with the plates m they will form the internal triangularfolds necessary to the production of a satchel-bottom 011 a bag withtucked sides. (See Fig. 12.)

The primary or diamond fold of the bagbottom is also formed by thecombined action of the presser-plate h and side tuck-folders, as saidplate and folders continue to advance, as shown in Fig. 13. In ourformer machine we used, in addition to these elements, alongitudiually-reciprocating disteuding-rod, which we have now dispensedwith, and rely upon the side folders to effect the necessary distentionand formation of the diamond fold. In this case, however, we use apresser, n, Fig. 12, for holding down the lower ply of the blank anddirecting the same to a nipper hereinafter referred to, said presseracting upon the forward end of the diamond fold, as shown in Figs. 12and 13.

It is also advisable to flatten down the rear end of the diamond foldafter the latter has been formed by the action of the side folders, andfor this purpose we use a rod, 1), the point of which is carriedrearward over the center of the fold, so as to press down that portionof the fold which is brought under its action. (See Figs. 14 and 15.)Vhile this rod performs one of the duties of the distending-roddescribed in our former patent, we do not flattened by the action of thepresser-plates 1), similar to those described in our Patent No. 242,661,and shown in Fig. 16. In this figure the presser-rod p and the means foroperating the same have been omitted in order not to confuse therepresentation of the flattening-plates 17.

During these operations, it should be understood, the blank has beenmoving continually forward, and before the side folders had commenced toact the front end of the blank had been caught and held by a nipper, s,on a drum, S, Fig. 17, and as the latter rotates the blank is carriedround by it, and the edges of the blank are acted upon in succession bynip pers t and 10, also carried by and moving with the drum, Fig. 18.These nippers t and w are so far apart,and the distance between them issuch in relation to the dimensions of the diamond fold on the bag-blank,that the nippers 15 will define the limits of the first of the finishingflaps 0c of the bag-bottom, while the nippers w will define the limitsof the last flap, x, of the same.

As the blank is carried around the drum S, paste is deposited along thecenter of the diamond fold by means of a paste-roll, T, Fig. 18. As soonas the point of the diamond fold. has passed beneath the paste-roll,itis released from the control of the nipper s, and is thrown out from theroll Sby the action of a creasing-blade, T, carried by the shaft of thepaste-roll and acting in conjunction with a recess in the roll S, thisrecess being immediately in advance of the nippers t, as shown in Fig.19. The point of the diamond fold is thus thrown out over a roller, V,Fig. 20, and as the drum S continues to rotate the flap acis folded bythe joint action of said roller and the drum S and its nippers t,asshown in Fig. 21. As soon as the nippers t have passed the roller V,theyare retracted, so as to free from the control of the drum S all thatportion of the partially-folded bottom in advance of the nippers 10. Asthe drum S rotates this free projecting portion of the blank strikes apivoted deflecting-plate, XV, Figs. 22 and 23, and is thus thrownoutward, as shown in Fig. 24, so that as the nippers 20 advance theywill form the finishing fold at, Fig. 25, the plate XV yielding topermit this folding of the blank, as shown in Figs. 26 and 27. As theplate XV swings upward that portion of the partiallyforined bottom ofthe bag resting on said plate is brought into contact with aguard-plate, V, and the flap a: is thereby pressed down and the securefastening of the same insured. This guard-plate W may, if desired, formpart of the plate \V, as shown in Fig. 27. The pre viously-foldedportion of the bottom, with the final flap, are then drawn by thenippers 10 between the drum S and a roller, X, whereby the finalpressure is imparted and the formation of the bottom completed, thenippers being then retracted,so as to release the finished bag, whichfalls into a suitable receptacle or onto an endless belt, which conveysit to the drying-room.

On reference to Figs. 28, 29, 30, and 31 it will be observed that thevarious rollers and drums of the machine are driven from the main shaftA by means of spur and bevel gearing, the spindles of the variousrollers and drums being adapted to suitable bearings on the frame B ofthe machine.

The presser-plate h and the arms a, carrying the side folders, areoperated by means similar to those set forth in our former Patent No.242,661; hence we have not considered it necessary to again illustrateor describe them in this application.

The pressers p are carried by a pivoted frame, 1)", to a stud, p, onwhich is hung the rod 1), the latter being curved, and the outer end ofthe same being free to slide in an eye, 1')", on a fixed bracket, pWVhen the frame 19 is elevated, as shown in Fig. 14, the rod 1) isretracted, as shown; but as the said frame 11 descends the relation ofthe stud p to the eye.

11 is changed, and as the upper end of the rod 1) is controlled by saideye the rod is caused to turn on its pivot, so as to project the lowerend of the rod, as shown in Fig. 15, and thus flatten out the rear pointof the diamond fold.

The nipper s is constructed as shown in Fig. 33, being secured to ashaft, 8, which turns in bearings in plates 8* on the ends of the drumS, the end of the shaft having an arm, 8 which is acted upon by suitablecams on the frame of the machine, these cams serving to commence theopening or closing of the nipper, and the completion of the movementbeing effected by the action of springs s on an angular plate, 5 carriedby the shaft.

The operation of the nippers w and t is effected by the means shown inFig. 34. Each nipper is hung to the slotted end of a tube, w, let intoan opening in the end of the drum, the nippers working in slots in thedrum. Each nipper has a V-shaped projection, which is acted upon by aspring-bolt, 10 in the tube w, and on each nipper is a pin, 10*, adaptedto a cam-slot in a collar, 10*, secured to a shaft or spindle, 10 whichis adapted to bearings in end plates on the drum, and has a projectingend with an arm, 20', for the action of cams on the frame, these cams,as in the case of the nipper 8, serving to start the movement of thenippers in either direction, and the movement being completed by theaction of the springbolts 10 on the V-shaped projections of the nippers.

While these devices for operating the nip pers are preferred, they arenot essential to our invention, as various devices for causing theopening and closing of the nippers may be devised.

Other modifications of the finishing end of the machine may also be madewithin the scope of our invention. For instance, it is not essentialthat the deflectingplate W should be used in every case, or that rollersV andX should be used for pressing down the folds m and a" of thebag-bottom, as rods or bars may be used in place of the rollers in somecases, and, instead of employing a drum, S, for carrying the nippers,the latter may be combined with an endless belt.

The machine shown and described is intended for the manufacture of asquare-bottomed bag from a tube with tucked sides, such as shown inFigs. 1 and 2. The bag shown in Fig. 1 has the primary fold for thebottom of the usual diamond shape, but in making the bag Fig. 2, thetube has longitudinal incisions formed in it on each side of the center,so as to form quadrangular tongues, as shown at each point of thediamond fold.

In making an ordinary satchel-bottomed bag 2 from a plain tube, thetube-forming devices shown will be replaced bya plain former, and theside tuck-folders will be removed or thrown out of action, the otherparts remaining the same.

\Ve claim as our invention- 1. The combination of a rotating drum orsegment havinga cutter, b, and slotted as de scribed, with the pivotedejector-lever b, as set forth.

2. The combination of the plate d with the presser-bar (1, havingrecesses (1, whereby pressure of the upper and inner folds of the tuckof the tube is prevented, as set forth.

3. The combination of mechanism, substantially as described, for forminga tube with tucked sides, with feed-rolls, recessed as described,whereby the upper and inner folds of the tucks are relieved frompressure, as set forth.

4. The combination of feedrolls, recessed as described, so as to feedthe tucked tube without pressing the edges of the folds,withpresser-plates f, whereby the lower folds of the said tucks areflattened at the edges with out affecting the upper folds, as set forth.

5. As a means of forming the primary or diamond fold on a tube withtucked sides, the combination .of the transverse presserplate with sidetuck-folders, operating,as described, to fold back the upper ply of thetube, as set forth.

6. The combination of the presser-plate and side tuck-folders with theguide it, for the forward end of the diamond fold, as specified.

7. The combination of the presser p with the rod 19, actuated by and inadvance of the said presser as set forth.

8. The combination of a bag-blank carrier with laterally -operating edge-nippers t for determining the line of foldof the flap ac, and with acreasing-blade, as set forth.

9. The combination,in a paper-bag machine, of mechanism for forming theprimary or diamond fold of the bag-bottom, with fold-completingmechanism comprising the following elements: a drum, S, edge-nippers tand w thereon, mechanism for operating said nippers, a deflector, V,located as described, so as to press the advance point of the diamondover the nippers tand onto the body, and a deflector, \V, located asdescribed, whereby it folds the portion of the bottom in advance of thenippersw back over the latter and onto the rear point of the diamond, asset forth.

10. The combination of the bag-blank carrier, edge-nippers fordetermining the line of fold of the final flap w, a deflector, WV, and apresser, X, as set forth.

11. The combination of the bag-blank carrier and its nippers with thedeflector XV and guard-plate WV, as set forth.

12. The combination of the drum, edgenippers w, and presser X, with thepivoted deflecting-plate WV, as set forth.

13. The combination of the drum-S with the 20 nippers t and w, pivotedin slots in said drum, the cam-collars 10*, adapted to act upon pins onsaid nippers, and spring-plates 10 acting on the nippers to complete theclosing of the same. 2 5

In testimony whereof we have signed our names to this specification inthe presence of two subscribing Witness.

FELIX W. LEINBAOH. CLARENCE A. VVOLLE. EDWARD H. BRUNNER. \Vitnesses.

M. S. SIEGER, FR. M. RAUCH.

